Method of making reinforced insoles.



F. E. BERTRAND.

METHOD OF MAKING REINFORCED INSOLES.

APPLICATION FILED on. 8. 1915.

1,272,902. Patented July 16, 1918.

30 in the patent'to April 2, 1907, and the Wonder-Workermoat.

rnnnnnro i1. BEn'rnANn, or mrrnxr, MASSACHUSETTS, ASSIGNOR, BY MESNE' ASSIGN- A oonronn'rron on NEW JERSEY.

'mnrnon or mniunennmrononn INSOLES.

Original application filed September 25,

' To all whom it may concern: 9

Be itknown that I IFREDERIC E. BERTRAND,

. a citizen of the United States, residing at "Lynn, in the county of Essexand State of 'Massachusetts, have invented certain new and useful Improvements in Methods of Making Reinforced Insole's;.and I do hereb declare the following to be a full, clear, an

This. invention relates to a method of I making insoles and more particularly to a method of making reinforced insoles.

The novel insole produced by the method .hereina'fterdescribed, its method of manufacture, and a machine for performing the dated May 7, 35.

steps, in the process of its manufacture, incidental to the application of the reinforcing material, are disclosed in applicants application for Letters Patent of the United States, Serial No. 651,056, filed September 25, 1911, from which this present application is a division.

In the early life of reinforced insoles the type havin the greatest commercial success was the-Gem disclosed in the patent to Cole No. 575,460, dated January 19, 1897. Later other types of reinforced insoles were developed such Johnson 1 No. 849,245, dated disclosed in the patent to Ryan No. 958,013,

1910, and to some extent in the earlier patents to Krippendorf No. 579.518, dated March 23, 1897, and Bohr No. 878,453, dated February 4, .1908. The- 1 Gem insole was a better insole than the Rochester insole, disclosed in the patent to Moore No. 275,248, dated April 3, 1883, which preceded it, because in the Gem-the. reinforcin fabric is carried across the feather t us stifiening this exceedingly flexible portion of the insole and preventing its becoming curled up under the upper in the lasting and subsequent operation on the shoe. For this reason, also, the commer- -ass1sted by reference to the cial supremacy of the Gem insole has been generally maintained since the introduction as the Economy disclosed Specification of -1.etters?atent. Patented Jilly 16, 19118. 1911, Serial No. 651,056. Divided and this applicatitn filed October 8, 1915. Serial No. 54,765.

cism as the Rochester insole, that is, an un- I MENTS, T0 UNITED SHOE MACHINERY CORPORATION, OF ZPATEBSON,'NEW JERSEY,

reinforced feather is used, which'is a serious a defect on thin stock.' At the same time the Economy insole is an improvement-on the Gem insole because of the greater strength of the marginal lip or rib and because the stock at both the inside and outside of the 11p is'of the same thickness, making for a tighter seam and for less damage to the reinforcing fabric during the inseamingoperation, as is well understood by .those' skilled in theart. Another, and a serious, defect in the Gem insole, which the later types of reinforced insoles overcome, is that the duck or canvas, used as reinforcing fabric, is trimmed in such manner that its ravelededge shows beyond the edge of the insole and gives an unsightly appearance to the inside of the finished shoe. It has more recently been proposed to combine some of I the good features of the Economy and Gem insoles in a single insole and some manufacturers are now us1ng an insole blank havmg a marginal 11p or rib llke that of 'the Economy insole and a sheet ofreinforcing fabric applied thereto like that of the Gem o insole. An illustration of this type is found in Figure 3 of the Thoma Patent No. 1,108,026, dated August 18, 1914. Still this reinforced insole, which may be termed the Cincinnati insole is imperfect because it does not overcome the serious defect of the fabric showing, at the shank of the insole espe-' cially, in the finished shoe.

The object of the present invention is to improve the manufacture of insoles in such a manner as to produce a reinforced insole in which the reinforcing fabric is so applied as to overcome the defects in the completed insole due to an improper application of the fabric such as hereinbefore adverted to,

To the accomplishment of this object the invention consists in the method of making I reinforced insoles, the preferred manner of practising which 'is hereinafter described and defined in the appended claims.

An understanding of the inventionwill be drawing in which,

Fig. 1 is a transverse section across the accompanying forepart of an insole blank with its edge slit as is customary in making a- Gem iinso'leg- I Fig. 2 is. a transverse section blank shown in Fig. 1 with a section formed by the edge slit turned up to form amar:

ginallip or rib; I

Fig. 3 "iS a section showing the blank of Fig.2 after having been reinforced by the present-method, and

Fig. 4 is a plan, and

' Fig. 5 isa section of an insole in the proc-- ess of being reinforced by the tools of the machine of the prior application hereinbefore referred to.

.In making the insole, the blank2 which maybe of leather or any other suitable material, is preferably slit at its edge as at 4 (Fig. 1) ina plane-usually parallel to the 'faceof the blank. The section 6, on the flesh side, if the blank is of leather, is then upturned to form a marginal lip or rib (see Fig. 2) while the section 8 on the opposite,

. or grain side of a leather blank, forms the feather of the insole. Reinforcing fabric 10 which is preferably, although not necessarily, inthe form of a'wide sheet is then applied to the lipped face of the blank'2,

belng beaded (1r 'crimp'edabout the lip or I rib 6 and extending laterally to either side applied by 1 machines supplied for performing this operation, and ifapplied'by a-machine, the machine 1llusthereof.- The fabric may: be

hand,"'or by. anyof the commercia trated'in said a plication Serial No. 651,056 convenient y be used.

' 2; he present, method. contemplates, more particularly, the production of a reinforced insole of the Gem type'with the reinforcing fabric extending over and-strengthening the feather outslde the marginal lip or rib however said lip or rib maybe formed, but having the excess marginal portion of the fabric severed along such a line that it.

lies within the edge of the blank. In other words, the fabric trimming. operation is so performed that in the finished insole the outer margin of the feather is left uncovered by the fabric, through which expedient the threads-at the severed edge of the fabric, if theyunravel, will not show beyond the edge of the insole .after'its incorporation in a shoe. A

The step of trimming the fabric along the desired line may, obvlously, be performed at any convenient time. In some factories it may be expedient to perform this step after the fabric has been completely applied to the blank, and in others duringv the opera tion .of apiplying the fabric. One conven- 50 'ient and e ectivemode of severing the fabrib is disclosed in said application Ser. No. 651,056 hereinbefore referred to.

. After the blank has been provided witha marginal lip or rib, for example in the manner disclosed in Fig. 2, reinforcing fabric is of the insolemg fabric tothe marginal lipor rib.

roughly applied to the lipped face usually byrunning a blunt toolaround the forepart, above the fabric, in the angle at'the inside of the lip which leaves the marginal portion of the fabric extending outwardly above the up, as shown at thelower half of Fig. 4. Thereafter the insole-is operated upon by a machine, or machines, to complete the application of the reinforcing fabric and trim it to the desired size. The machine-of said application; Serial No. 651,056 is preferably, although'not necessarily, used to com plete the application of the reinforcing fabric, and with this machine a severance of the fabric along the desired line. may also be effected. 1 g

In using the'maohine of said application, and referring more particularly to Figs. 4

and 5, the insole is supported, while being operated upon, on a rotary work-feeding table 12, over which it is fed by the machine.

The devices for operating on the insole supported on the work supporting table to crimp the reinforcing material into a bead and cause. the reinforcing fabric to adhere to the vertical lip of the insole consist ofan inside former comprisingfa frusto-conical roll 14 arranged to press thereinforcing material against the inner faceof the lip and :against the face of the insole at the base of the lip, and an outside former coinprising 'a rotary wheel 18 arranged to press the reinforcing material against the outer face of the lip and against thefeather. The

roll 14 is mounted upon the lower end of a vertical shaft 15 which is rotatably mounted in the machine frame'and positively driven so that'it will assist in feeding the insole forward. 'To this end the roll 14 is pro vided With longitudinal teeth 16. The shaft 19 on which the outside forming wheel 18 is mounted is also positively driven. .The w wheel 18 is provided with a beveled face 20 complemental to the sloping face of the conical roll 16. With the forming wheel and roll thus constructed and arranged, they will act to compress the lip from base to top and bendthe lip inwa'rd at an inclination to the surface of the sole so that it will stand at the proper angle to the-bottom of thelast for the convenient and proper lasting andsewing of the shoe when the sole is bent transversely in applying itto the curved bottom of the last. This arrangement of the'lip engaging surface of the roll and forming wheel also insures the shaping and bending of the lip and reinforcing fabric so that firmly into the. angles at each side of the lip or rib! It is thus seen that by employthe reinforcing fabric is pressed ingthe machine of said application but a single operation, in addition to the first rough application of the fabric, -is neededto complete the application of, the reinforcmages In order to avoid the necessity of a sepais arranged so that when oscillated, its cutn ting edge severs the reinforcing fabric di' rectly adjacent the outside edge of the wheel knife 22 severs the fabricialong a line de- '-termined by the path of the outside edgeof the wheel 18. In order that the line of severance may be within the edge of the blank, a forming wheel 18 is selected having a width preferably narrower than the narrowest width of the feather of the insoles to be operated upon. This results in the fabric being trimmed along a line within the edge of the blank; It will be observed that the arrangement described provides for a trimming cut at a uniform distance from Y the lip or rib. This, however, is not essential and the cut might be gaged from the 25 edge of the blank with equally good results in the finished insole. The main advantage obtained by trimming the'fabric in the manner just described; is that because the free margin 24 of the sticky-fabric outside the line of severance is not pressed into. engagement with the outer margin of the feather before beingsevered it is easily removed from the insole during the trimming operation.

'Those skilled in the .art will understand that the important portion of the insole where the edge of the fabric should lie within the edge of the, blank is at the shank,

as the forepart is not easily visible, after. the insole has been incorporated in a shoe, therefore, should the forming wheel 1 8 be equal in-width to the width of the feather around the forepart, still an insole would be produced having the advantages hereinbefore described, I Those skilled in the art will also understand a particular, advantage gained by the 'method herein described and claimed, namely, the severance'of the fabric along a the edge of the blank can easily be removed without the necessity of skiving. or'otherwise cutting into and removing the stock of the feather with a consequent weakening thereof 66 Having thus described the invention and '18 where it bears upon the fabric. Thus the line within the edge of the blank in such manner that the full strength 'of the feather the preferred manner of practising it, What is claimed as new, is;

1. The method of making reinforced insoles which comprises providing a blank with an upstanding marginal lip or rib,

applying reinforcing fabric to the lip or rib,

and severing the fabric alone, during the fabric applying operation, along such a line that when the application of the fabric is completed its edge will lie on the feather Within theedge of the blank.

, 2. The method of making reinforced insoles which comprises providing a blank with an upstanding marginal lip orrib, applying reinforcing fabric to the lip or rib, and severing the fabric along a line on the feather within the edge of the blank, at'the shank portion of the blank at least, without a reduction of the thickness of the feather.

3. The method of making reinforced insoles which comprises edge slitting a blank,

upturning one of the two sections to produce a lip andfeather, applying reinforcing fabric to the li'pped face of the blank, and severing the fabric along a line on the feather within the edge of the blank, at the '5 5. That step in the method of making reinforced insoles which consists in severing the reinforcing fabric along a line ontlre feather withinthe edge of the blank without a reduction of the thickness of the feather. i

shank portion of the blank at least, without I 6. That step in the method of making re I inforced. insoles which consists in applying pressure tOftlle reinforcing fabric on. the feather for a portion of the .width of the feather measured outwardly from the lip or rib and simultaneously severing the fabric along a line substantially at the outer limit of the pressed area as it lies on the feather. 7. That-step in the method of making remforcedinsoles which consists in severing the marginal portion of, the reinforcing fabric by an incision through the fabric from above where it-lies over the feather along such a line that its edge. at the shank portion of the blank .at least, lies within the edge of the blank.

manner the excess fabricup to a line within '8. Themethod of making reinforced insoles wh1ch comprises providing a blank with a marginal lip or rib and a feather of varying idth outside of said lip or rib,

applying reinforcing fabric to the lip or rib and feather, and severing the fabric alone along a line parallel to the lip or rib,

and within the edge f the blank at its shank-portion at least. e. 1 9 The method of making reinforced-insoles which comprises providing a blank with an upstanding marginal lip or rib, applying reinforcing fabric to the lip or rib, and severing the fabric along a line on the feather Within the edge of the blank, at the shank portion ofthe blank at least.

10. A method of trimming the canvas on a reinforced insole, which consists in securing' the canvas over the feather and cutting through the canvas on the feather against the surface of the insole, Without cuttin away any of the body of the insole. I

' 11. A method of trimming the canvas on a reinforced insole ,whichconsists in securing the canvas over the vfeather and cutting through the canvas on the feather against the surface of the insole, inside of the edge of the insole, without cutting away any of the body of the insole. I v v j FREDERIC QBERTRANIDQ 

